JP2008165862A - Reproduction device and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reproduction device and method which can display the total or remaining playback time for various titles by coping with changes in the reproduction configuration in real time. <P>SOLUTION: The reproduction device 10 has a CPU11, a RAM12, a ROM13, and an equipment display 14. The CPU11 functions on the reproduction firmware at least as a device setup acquisition section, a disk determination section, a reproduction start request determination section, an image reproduction section, and a device stop request determination section. The image reproduction section has at least a parameter setup section, a content acquisition section, a total playback time calculator, a time display controller, a standby section, a parameter updating section, and a reproduction stop request determination section. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a playback apparatus and playback method for playing back an HD DVD, and more particularly to a playback apparatus and playback method for displaying playback time in playback of an HD DVD or the like.

  Conventionally, a technique for displaying this type of reproduction time is disclosed in Japanese Patent Laid-Open No. 7-130149.

  The playback device with a time display function disclosed in Japanese Patent Laid-Open No. 7-130149 (Patent Document 1) stores a plurality of programs each composed of a plurality of data units including video data, and the absolute value at the head of each program. This is a device for reproducing a recording medium (disc) in which time information and relative time information in a program at the head of each data unit are recorded.

This playback device with a time display function acquires absolute time information for display from the absolute time information of the program being played back and the relative time information of the data unit being played back in the absolute time display mode, and played back in the relative time display mode. The relative time information for display is obtained from the relative time information of the data unit being played with the absolute time information of the program in the middle as zero, and the frame number display mode counts the frame information of the output image and recognizes the current frame number Time information processing means, and display means for displaying a display signal obtained from the time information processing means, based on time information recorded on a recording medium (disc), absolute time display, relative time display Any one of the frame number display and the frame number display can be performed according to a user instruction.
Japanese Patent Laid-Open No. 7-130149

  Many discs such as HD DVDs that store content using a blue laser have a plurality of titles (reproduction units) composed of a plurality of chapters (programs). However, since the conventional technology for displaying the playback time assumes that there is only one title, when continuously playing multiple titles, the display of the total playback time spanning multiple titles and the remaining playback time (playback) (Time until completion) cannot be displayed.

  In addition, as a content (recording information), a disc such as an HD DVD has video data, a playback list (a collection of playback configurations (playback order) of multiple titles according to country settings and parental settings), and various applications. Is provided. For this reason, in the conventional technique for displaying the playback time, when displaying the playback time on a disc such as an HD DVD, it is necessary to avoid application information that is irrelevant to the time display. However, in the conventional technology for displaying the playback time, it is not assumed that a playback list or application is recorded on the recording medium, and thus it is difficult to display the playback time on a disc such as an HD DVD.

  Also, the HD DVD playback apparatus has a variable playback configuration even during playback in accordance with a user instruction or an application. However, the conventional technique for displaying the playback time cannot cope with a change in the playback configuration during playback.

  The present invention has been made in consideration of the above-described circumstances, and provides a playback apparatus and playback method capable of displaying the total playback time and the remaining playback time spanning a plurality of titles in real time in response to changes in the playback configuration. The purpose is to provide.

  In order to solve the above-described problems, a playback apparatus according to the present invention includes a parameter initialization unit that initializes a search title number, a total playback time, and a search history list, and a plurality of playback configurations that belong to a playback configuration recorded in a storage medium. A code determination unit that determines whether or not the country code and the parental code match the country code and the parental code for the title that matches the search title number among the titles of If the comparison matches, a time calculation unit that adds the playback time of the title that matches the search title number as the total playback time of the playback configuration, and the search history list for the title that matches the search title number, A search history list update unit that updates information indicating that the processing necessary for calculating the total playback time has been completed, and the search A search title number update unit that adds 1 to an ittle number, and a final determination unit that determines whether or not the search title number is smaller than the maximum title number recorded on the recording medium. To do.

  On the other hand, in order to solve the above-described problem, the playback method according to the present invention initializes a search title number, a total playback time, and a search history list, and includes a plurality of playback configurations recorded in a storage medium. Comparing the country code and parental code with the country code and parental code of the device itself for a title that matches the search title number of the titles, and determining whether or not they match If so, adding the playback time of the title that matches the search title number as the total playback time of the playback configuration; and for the title that matches the search title number, the search history list has already been added to the total playback time. A step of updating to information indicating that processing necessary for calculation has been completed, and adding 1 to the search title number A step that is a method for the search title ID is characterized by having a, and determining whether the smaller the maximum title numbers recorded on the recording medium.

  Further, in order to solve the above-described problem, the playback method according to the present invention initializes a search title number, a total playback time, and a search history list, and includes a plurality of playback configurations recorded in a storage medium. Comparing the country code and parental code with the country code and parental code of the device itself for a title that matches the search title number of the titles, and determining whether or not they match If so, adding the playback time of the title that matches the search title number as the total playback time of the playback configuration; and for the title that matches the search title number, the search history list has already been added to the total playback time. A step of updating to information indicating that processing necessary for calculation has been completed, and adding 1 to the search title number A step of determining whether the search title number is smaller than a maximum title number recorded on the recording medium, a step of displaying the total reproduction time on a display device, and all the above steps in sequence. And a step of repeating.

  According to the playback device and the playback method of the present invention, it is possible to display the total playback time and the remaining playback time spanning a plurality of titles in response to changes in the playback configuration in real time.

  Embodiments of a playback apparatus according to the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a schematic overall configuration diagram showing an embodiment of a playback apparatus according to the present invention.

  The playback device 10 includes a CPU 11, a RAM 12, a ROM 13, and a device display unit 14.

  The content recorded on the disc 1 includes video data, a reproduction list, and an application for reproduction control. Video data is a binary file in which video data and audio data are combined in HD DVD. The reproduction list is a text file describing the reproduction configuration. An application is a set of text files composed of a markup language (XML) and a script language (ECMAScript) in the HD DVD.

  The CPU 11 controls the processing operation of the playback device 10 according to the program stored in the ROM 13. The CPU 11 loads the reproduction firmware stored in the ROM 13 and data necessary for executing the firmware into the RAM 12, and executes a process of reproducing video and a process of displaying time according to the reproduction firmware.

  The RAM 12 provides a work area for temporarily storing programs executed by the CPU 11 and data.

  The ROM 13 stores a start program for the playback apparatus 10, playback firmware, and various data necessary for executing these programs.

  The ROM 13 has a configuration including a recording medium readable by the CPU 11 such as a magnetic or optical recording medium or a semiconductor memory, and a part or all of the programs and data in the ROM 13 are transmitted via an electronic network. It may be configured to be downloaded.

  FIG. 2 is a schematic block diagram showing a configuration example of a function realization unit by the CPU 11 shown in FIG.

  The CPU 11 functions as at least a device setting acquisition unit 31, a disk presence / absence determination unit 32, a reproduction start request determination unit 33, a video reproduction processing unit 34, and a device stop request determination unit 35 by the reproduction firmware. Each of the units 31 to 35 uses a required work area of the RAM 12 as a temporary storage location for data.

  Next, each part 31-35 of CPU11 is demonstrated.

  The device setting acquisition unit 31 has a function of reading the country code and parental code stored in the playback device 10 and storing them in a required work area of the RAM 12.

  Here, it is assumed that the parental code can be changed by the user even during video reproduction. For this reason, even during video playback, the playback configuration may change due to changes in the parental code.

  The disc presence / absence determination unit 32 has a function of determining whether or not the disc 1 is loaded in the playback apparatus 10.

  The reproduction start request determination unit 33 has a function of determining whether or not a video reproduction start request is made from the user via the input unit 15 such as a remote controller.

  The video playback processing unit 34 has a function of reading out content from the disc 1 and performing video playback processing, and performing processing necessary to display time such as the total playback time Ts and the remaining playback time Tr.

  FIG. 3 is a schematic block diagram showing the configuration of the video reproduction processing unit 34 of the CPU 11 shown in FIG.

  The video reproduction processing unit 34 has at least a parameter setting unit 41, a content acquisition unit 42, a total reproduction time calculation unit 43, a time display control unit 44, a standby unit 45, a parameter update unit 46, and a reproduction stop request determination unit 47. .

  The apparatus stop request determination unit 35 has a function of determining whether or not an apparatus stop request has been made via the input unit 15 such as a remote controller.

  The parameter setting unit 41 of the video reproduction processing unit 34 has a function of causing the parameter setting unit to store the values of the elapsed reproduction time Tp and the reproduction title number Np as zero in a required work area of the RAM 12.

  The content acquisition unit 42 has a function of reading a playlist and application from the disc 1.

  Here, the reproduction list will be described.

  FIG. 4 is an explanatory diagram showing an example of a reproduction list. FIG. 4 shows a case where three titles 0, 1, and 2 are stored on the disc 1.

  As shown in FIG. 4, one playlist can have a playback configuration corresponding to a plurality of country settings (see FIGS. 4A and 4B). FIG. 4 shows the case where title 1 is played back only in country A. An example of such a title is a warning display that should be displayed only in a certain country.

  In addition, one reproduction list can have a reproduction configuration corresponding to a plurality of parental settings (see (b-1) and (b-2) in FIG. 4). FIG. 4 shows the case where the age restriction is applied to the second half of title 2. When playback is performed according to the playback configuration of (b-1) in FIG. 4, if the parental code is changed and the age restriction is released during playback, the playback configuration is changed to (b-2). Thus, title 2 is reproduced to the end.

  Also, as shown by title 0 in FIG. 4, the playlist can constitute a loop state of the title. As a title that loops in this way, for example, a menu screen is raised.

  The video playback device 10 that has read the playback list selects an appropriate playback configuration according to the country code and parental code set in the playback device 10.

  FIG. 5 is an explanatory diagram of a description example of a reproduction list. 5 does not correspond to FIG.

  In FIG. 5, the description starting with <FirstPlayTitle is the information of title 0, and the subsequent description starting with <Title is the information of title 1 and title 2.

  The numerical value described in titleDuration is the playback time of each title. Since there is no titleDuration item in the application, the total playback time can be calculated by adding the numerical values described in the titleDuration according to the playback configuration. ParentalLevel indicates a country code and a parental code.

  onEnd indicates the title id of the title to be reproduced next to this title. When there is no description of onEnd, the title described next is reproduced. By specifying your own title in onEnd, you can configure the title loop state.

  The total playback time calculation unit 43 has a function of performing processing necessary to calculate the total playback time Ts and the remaining playback time Tr while following the playback order of the titles based on the playback list received from the content acquisition unit 42.

  The time display control unit 44 has a function of causing the device display unit 14 to display the total reproduction time Ts and the remaining reproduction time Tr received from the total reproduction time calculation unit 43. Further, the time display control unit 44 has a function of superimposing the total reproduction time Ts and the remaining reproduction time Tr on the video signal output from the reproduction apparatus 10 to the external display unit 21 as necessary.

  The standby unit 45 has a function of waiting for processing of the CPU 11 for a required time.

  The parameter updating unit 46 has a function of rewriting the values of the elapsed playback time Tp and the playback title number Np stored in the required work area of the RAM 12 to current values.

  The playback stop request determination unit 47 has a function of determining whether or not a video playback stop request has been made by the user via the input unit 15 such as a remote controller.

  The device display unit 14 has a function of displaying the total reproduction time Ts and the remaining reproduction time Tr received from the time display control unit 44 simultaneously or individually.

  Next, the configuration of the total playback time calculation unit 43 will be described.

  FIG. 6 is a schematic block diagram showing the configuration of the total playback time calculation unit 43 of the video playback processing unit 34 shown in FIG.

  The parameter initialization unit 51 of the total playback time calculation unit 43 sets the values of the search title number Ni, the total playback elapsed time Ts, and the remaining playback time Tr to zero, and the search history list L <0> to L <max>. It has a function of storing the value as false in a required work area of the RAM 12.

  Here, the search title number Ni refers to the title number of the title currently focused on for time calculation. For example, when paying attention to title 3, search title number N3 = 3.

  The search history list L <i> is an index indicating whether or not the title has been searched, and is set to true when the search has been performed. For example, when the title 2 has been searched, the search history list L <2> = true. This is synonymous with recording that a determination has already been made for a title that has already been determined by the code determination means. By using this search history list L <i>, it is possible to prevent duplicate time counting for the same title in calculating the total playback time Ts and the remaining playback time Tr.

  The code determination unit 52 reads out the country code and parental code of the playback device 10 stored in the required work area of the RAM 12 by the device setting acquisition unit 31, and searches the country code and parental code of the search title (FIG. 5). Compared with parentalLevel), it has a function of determining whether or not they match.

  The flag writing unit 53 has a function of writing true or false in the determination result flag F as necessary and storing it in a required work area of the RAM 12.

  The time calculation unit 54 reads the value of the total reproduction time Ts stored in the required work area of the RAM 12, and adds the reproduction time Ts <i> of the title being searched (see titleDuration in FIG. 5) to this value. It has a function of newly storing a value as a total reproduction time Ts in a required work area of the RAM 12. The time calculator 54 has a function of storing a value obtained by subtracting the reproduction elapsed time Tp from the total reproduction time Ts as a remaining reproduction time Tr in a required work area of the RAM 12. Further, the time calculation unit 54 reads the remaining reproduction time Tr stored in the required work area of the RAM 12, and newly adds a value obtained by adding the reproduction time Ts <i> of the searched title to this value to the remaining reproduction time Tr. Has a function of storing it as a value in a required work area of the RAM 12.

  The title determination unit 55 has a function of comparing the size of the search title number Ni and the title number Np currently being reproduced.

  The flag determination unit 56 has a function of determining whether or not “false” is written in the determination result flag F.

  The search history update unit 57 has a function of describing true in the search history list L <i> for the searched title Ni.

  The onEnd setting determination unit 58 has a function of determining whether or not there is a description of onEnd in the title being searched.

  The search title number update unit 59 has a function of updating the search title number Ni stored in a required work area of the RAM 12.

  The final determination unit 60 has a function of determining whether the search title number Ni is greater than the maximum title number Nmax and whether the search history list L <i> corresponding to the search title number Ni is true.

  Next, the operation of the playback device 10 will be described.

  FIG. 7 is a flowchart showing a procedure when the CPU 11 of the playback apparatus 10 shown in FIG. 1 displays the total playback time and the remaining playback time spanning a plurality of titles in response to changes in the playback configuration in real time. In FIG. 7, reference numerals with numbers added to S indicate steps in the flowchart.

  This procedure starts when the playback device 10 is turned on and the playback firmware is activated, and a parental code is set in the playback device 10 by the user or by default.

  First, in step S <b> 1, the device setting acquisition unit 31 reads out the country code and parental code stored in the playback device 10 and stores them in a required work area of the RAM 12.

  Next, in step S <b> 2, the disk presence / absence determination unit 32 determines whether or not the disk 1 is loaded in the playback device 10. If it is loaded, the process proceeds to step S2. On the other hand, if it is not loaded, the presence / absence of the disk 1 is continuously determined.

  Next, in step S3, the reproduction start request determination unit 33 determines whether or not a video reproduction start request is made from the user via the input unit 15 such as a remote controller. If a reproduction start request is made, the process proceeds to step S4. On the other hand, if not, the process proceeds to step S5.

  Next, in step S4, the video reproduction processing unit 34 reads the content from the disc 1 and performs video reproduction processing, and also performs processing necessary for performing time display such as the total reproduction time Ts and the remaining reproduction time Tr. .

  Next, in step S <b> 5, the device stop request determination unit 35 determines whether a device stop request has been made from the user via the input unit 15 such as a remote controller. When a device stop request is made, the device stop request determination unit 35 notifies the playback firmware that the device stop request has been made, the playback firmware stops, and the series of procedures ends. On the other hand, if no device stop request is made, the process returns to step S2.

  FIG. 8 is a sub-routine flowchart showing a procedure in the video playback processing and time display processing executed by the video playback processing unit 34 in step S4 of FIG. In the present invention, the process of playing back the video is not important and will not be described. In FIG. 7, reference numerals with numbers added to S indicate steps in the flowchart.

  In step S41, the parameter setting section 41 stores the elapsed playback time Tp and the currently played title number Np as zero in the required work area of the RAM 12. The parameter setting unit 41 reads the title number from the disc 1 and stores the maximum title number value stored in the disc 1 as a maximum title number Nmax in a required work area of the RAM 12.

  Next, in step S <b> 42, the content acquisition unit 42 reads a playlist and application from the disc 1.

  Next, in step S43, the total reproduction time calculation unit 43 is necessary for calculating the total reproduction time Ts and the remaining reproduction time Tr while following the reproduction order of the titles based on the reproduction list received from the content acquisition unit 42. Process.

  Next, in step S44, the time display control unit 44 causes the device display unit 14 to display the total reproduction time Ts and the remaining reproduction time Tr received from the total reproduction time calculation unit 43. Further, the time display control unit 44 superimposes the total reproduction time Ts and the remaining reproduction time Tr on the video signal output from the reproduction apparatus 10 to the external display unit 21 as necessary.

  Next, in step S45, the standby unit 45 causes the processing of the CPU 11 to wait for a required time. For example, when 100 msec is designated as the required time, a standby time of 100 msec is provided between the processes for calculating the total reproduction time.

  As a result, the process of calculating the total reproduction time is repeatedly performed for each standby time controlled by the standby unit 45. Therefore, even when a title or chapter is moved or a parental code is changed via the input unit 15 such as a remote controller, a new total playback time Ts and remaining playback time corresponding to the change are promptly obtained. Tr can be obtained.

  Next, in step S46, the parameter update unit 46 rewrites the playback elapsed time Tp and the currently played title number Np values stored in the required work area of the RAM 12 to the current values.

  Next, in step S47, the playback stop request determination unit 47 determines whether a video playback stop request has been made by the user via the input unit 15 such as a remote controller. When a reproduction stop request is made, the process of reproducing a series of videos and the process of displaying time are finished. On the other hand, when the reproduction stop request is not made, the process returns to step S43.

  FIG. 9 is a subroutine flowchart showing a procedure in the time display process executed by the total reproduction time calculation unit 43 in step S43 of FIG. In FIG. 7, reference numerals with numbers added to S indicate steps in the flowchart.

  In step S201, the parameter initialization unit 51 sets the search title number Ni, the total playback elapsed time Ts, and the remaining playback time Tr to zero, and sets the values of the search history list L <0> to L <max> to false. Is stored in a required work area of the RAM 12.

  Here, the search title number Ni refers to the title number of the title currently focused on for time calculation.

  Next, in step S202, the code determination unit 52 reads out the country code and parental code of the playback device 10 stored in the required work area of the RAM 12 by the device setting acquisition unit 31, and searches the country code of the search title. Compared with the parental code (see parentalLevel in FIG. 5), it is determined whether or not they match. If not, the process proceeds to step S203. On the other hand, if they match, the process proceeds to step S204.

  Next, in step S <b> 203, the flag writing unit 53 writes “false” in the determination result flag F and stores it in the required work area of the RAM 12.

  On the other hand, in step S <b> 204, the flag writing unit 53 writes true in the determination result flag F and stores it in the required work area of the RAM 12.

  Next, in step S205, the time calculation unit 54 reads the value of the total playback time Ts stored in the required work area of the RAM 12, and uses this value as the playback time Ts <i> of the title being searched (FIG. 5). (See titleDuration) is newly stored in the required work area of the RAM 12 as the total reproduction time Ts.

  Next, in step S206, the title determination unit 55 compares the search title number Ni with the title number Np currently being reproduced. If the currently reproduced title number Np is larger than the search title number Ni, the process proceeds to step S210. On the other hand, if the currently reproduced title number Np is equal to or less than the search title number Ni, the process proceeds to step S207.

  Next, in step S207, the title determination unit 55 compares the sizes of the search title number Ni and the reproduction title number Np. If the currently reproduced title number Np is the same as the search title number Ni, the process proceeds to step S208. On the other hand, if they are different, that is, if the search title number Ni is larger than the currently reproduced title number Np, the process proceeds to step S209.

  Next, in step S208, the time calculation unit 54 stores a value obtained by subtracting the reproduction elapsed time Tp from the total reproduction time Ts in the required work area of the RAM 12 as the remaining reproduction time Tr. Here, it should be noted that the total playback time Ts updated in step S205 is not necessarily the total playback time of the entire playback configuration but the total playback time up to the title of the search title number Ni. For this reason, the remaining playback time Tr equal to the value obtained by subtracting the playback elapsed time Tp from the total playback time Ts in this step is equal to the remaining playback time of the title being searched.

  On the other hand, in step S209, the time calculation unit 54 reads the remaining reproduction time Tr stored in the required work area of the RAM 12, and newly adds a value obtained by adding the reproduction time Ts <i> of the title being searched to this value. The value of the remaining reproduction time Tr is stored in a required work area of the RAM 12. In this step, the title being searched has a larger title number than the title being played back and is an unplayed title.

  Next, in step S210, the playback stop request determination unit 47 determines whether a video playback stop request has been made by the user via the input unit 15 such as a remote controller. When the reproduction stop request is made, the process of displaying a series of times is completed in order to promptly perform the reproduction stop process. On the other hand, when the reproduction stop request is not made, the process proceeds to step S211.

  Next, in step S211, the flag determination unit 56 determines whether or not “false” is written in the determination result flag F. If false, the process proceeds to step S216. On the other hand, if true, the process proceeds to step S212.

  Next, in step S212, the search history update unit 57 describes true in the search history list L <i> in order to confirm that the currently searched title has been searched.

  Next, in step S213, the onEnd setting determination unit 58 determines whether there is a description of onEnd in the title being searched. If there is, the process proceeds to step S214. If not, the process proceeds to step S215.

  Next, in step S214, the search title number update unit 59 updates the search title number Ni to the title number of the title described in the onEnd of the currently searched title, and stores it in the required work area of the RAM 12.

  On the other hand, in step S215, the search title number updating unit 59 sets a value obtained by adding 1 to the search title number Ni as a new search title number Ni and stores it in a required work area of the RAM 12.

  Next, in step S216, the final determination unit 60 determines whether the search title number Ni is greater than the maximum title number Nmax, and the search history list L corresponding to the new search title number Ni updated in step S214 or step S215. Determine whether <i> is true. If neither condition is satisfied, the process returns to step S202. On the other hand, when either one is satisfied, the process of displaying a series of times ends. Here, as a case where the search history list L <i> corresponding to the new search title number Ni is true, for example, a case where the title forms a loop state can be cited.

  With the above procedure, the total playback time and the remaining playback time spanning a plurality of titles can be displayed in response to changes in the playback configuration in real time.

  The playback device 10 according to the present embodiment repeatedly performs a process of calculating the total playback time for each required standby time. Therefore, even when a title or chapter is moved or a parental code is changed via the input unit 15 such as a remote controller, a new total playback time Ts and remaining playback time corresponding to the change are promptly obtained. Tr can be obtained. Therefore, according to the playback apparatus 10, it is possible to display the total playback time and the remaining playback time in response to changes in the playback configuration in real time, thereby improving user convenience.

  Further, the playback apparatus 10 according to the present embodiment performs processing assuming that there are a plurality of titles in the content of the disc in calculating the total playback time. For this reason, it is possible to display the total reproduction time and the remaining reproduction time over a plurality of titles. Therefore, the playback device 10 can be applied to a disc having a plurality of titles such as HD DVD, and its industrial value is great.

  As for the calculation method of the remaining playback time Tr, FIG. 9 shows a calculation method in which titleDuration is calculated in order from the title with the smallest title number and the titleDuration after the currently played title is added (steps S208 and S209 in FIG. 9). (Refer to the above), but a calculation method of subtracting the elapsed playback time from the total playback time Ts of the playback configuration may be used. In this case, a step for obtaining the remaining reproduction time Tr by subtracting the elapsed reproduction time from the total reproduction time Ts at the stage where the total reproduction time Ts has been obtained by the procedure shown in FIG. 9, that is, after step S216, is newly provided. That's fine.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment.

1 is a schematic overall configuration diagram showing an embodiment of a playback apparatus 10 according to the present invention. FIG. 2 is a schematic block diagram illustrating a configuration example of a function realization unit by a CPU 11 illustrated in FIG. 1. FIG. 2 is a schematic block diagram illustrating a configuration of a video reproduction processing unit 34 of the CPU 11 illustrated in FIG. 1. Explanatory drawing which shows an example of a reproduction list. Explanatory drawing which shows the example of a description of a play list. FIG. 4 is a schematic block diagram showing a configuration of a total playback time calculation unit 43 of the video playback processing unit 34 shown in FIG. 3. 7 is a flowchart showing a procedure when the CPU 11 of the playback apparatus 10 shown in FIG. 1 displays the total playback time and the remaining playback time across a plurality of titles in response to a change in playback configuration in real time. The subroutine flowchart which shows the procedure in the case of the process which reproduces | regenerates the image | video and the process which displays time performed by the video reproduction process part 34 by FIG.5 S14. The subroutine flowchart which shows the procedure in the process of displaying time performed by the total reproduction time calculation part 43 by step S143 of FIG.

Explanation of symbols

1 disc 10 playback device 11 CPU
12 RAM
13 ROM
14 Device display unit 15 Input unit 21 External display unit 31 Device setting acquisition unit 32 Disc presence / absence determination unit 33 Playback start request determination unit 34 Video playback processing unit 35 Device stop request determination unit 41 Parameter setting unit 42 Content acquisition unit 43 Total playback time Calculation unit 44 Time display control unit 45 Standby unit 46 Parameter update unit 47 Playback stop request determination unit 51 Parameter initialization unit 52 Code determination unit 53 Flag writing unit 54 Time calculation unit 55 Title determination unit 56 Playback stop request determination unit 57 Flag determination Unit 58 Search history update unit 59 Search title number update unit 60 Final determination unit Tp Elapsed playback time Np Title number Nmax currently played back Maximum title number Ni Search title number Ts Total playback time Ts <i> Playback time of title being searched Tr Remaining playback time L <i> Search history list

Claims (7)

A parameter initialization unit that initializes the search title number, total playback time, and search history list;
Compare the country code and parental code with the country code and parental code of the device itself for a title that matches the search title number among a plurality of titles belonging to the playback configuration recorded on the storage medium. A code determination unit for determining whether to
A time calculator that adds the playback time of the title that matches the search title number as the total playback time of the playback configuration if the comparison matches,
A search history list update unit that updates the search history list with information indicating that the processing necessary for calculating the total playback time has already been completed for a title that matches the search title number;
A search title number update unit for adding 1 to the search title number;
A final determination unit that determines whether the search title number is smaller than the maximum title number recorded in the recording medium;
A playback apparatus comprising: A title determination unit that compares the search title number with a currently reproduced title number;
The parameter initialization unit further has a function of initializing the remaining playback time,
If the search title number is equal to the currently played title number as a result of the title determination, the time calculating unit adds a value obtained by subtracting the elapsed playback time from the total playback time to the remaining playback time. 2. The playback apparatus according to claim 1, further comprising a function and a function of adding a playback time of a title that matches the search title number to the remaining playback time when the search title number is larger than the currently played title number. An onEnd setting determination unit that determines whether or not there is an onEnd setting for a title that matches the search title number;
The search title number update unit changes the search title number to the number described in onEnd when the onEnd setting is present, and adds 1 to the search title number when the onEnd setting does not exist. In addition,
The playback apparatus according to claim 1, wherein the final determination unit further has a function of determining whether the information in the search history list is information indicating that processing necessary for calculating the total playback time has already been completed. The playback device according to claim 1, further comprising a time display control unit that displays the total playback time on a display device. Initializing the search title number, total playback time and search history list;
Compare the country code and parental code with the country code and parental code of the device itself for a title that matches the search title number among a plurality of titles belonging to the playback configuration recorded on the storage medium. Determining whether to
If the comparison matches, adding the playback time of the title that matches the search title number as the total playback time of the playback configuration;
For the title that matches the search title number, updating the search history list to information indicating that the processing necessary for calculating the total playback time has already been completed;
Adding 1 to the search title number;
Determining whether the search title number is less than the maximum title number recorded on the recording medium;
A reproduction method characterized by comprising: Initializing the search title number, total playback time and search history list;
Compare the country code and parental code with the country code and parental code of the device itself for a title that matches the search title number among a plurality of titles belonging to the playback configuration recorded on the storage medium. Determining whether to
If the comparison matches, adding the playback time of the title that matches the search title number as the total playback time of the playback configuration;
For the title that matches the search title number, updating the search history list to information indicating that the processing necessary for calculating the total playback time has already been completed;
Adding 1 to the search title number;
Determining whether the search title number is less than the maximum title number recorded on the recording medium;
Displaying the total playback time on a display device;
Sequentially repeating all the above steps;
A reproduction method characterized by comprising: Comparing the search title number with the currently playing title number after adding the playback time;
If the result of this comparison is that the search title number is equal to the currently played title number, adding a value obtained by subtracting the elapsed playback time from the total playback time to the remaining playback time;
As a result of the comparison, if the search title number is greater than the currently playing title number, the method further comprises adding a playback time of a title that matches the search title number to the remaining playback time,
6. The reproduction method according to claim 5, wherein the initializing step is a step of initializing a search title number, a total reproduction time, a search history list, and a remaining reproduction time.

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